"Things You Wouldn't Know If We Didn't Blog Intermittently."
... unless said breakfast cereal already contains a generous amount of Prussian Blue
I'm pretty sure these are lecture notes from the University of Sydney, where i studied chemistry not long ago. Either that or they plagiarised the joke from elsewhere.
This was in my college organic chem text. http://www.facebook.com/photo.php?fbid=825565363399&set=a.758505122659.2381377.16800799&type=3&theater
This reminds me of comments regarding testicular scans in my nuclear medicine procedures manual: "Could be problematic on previously castrated men and female patients."
Even if it is plagiarised, it's still funny :D .